<template>
   <div>
		<header id="head_top">
			<slot name="logo"></slot>
			<slot name="search"></slot>
			<section class="head_goback" v-if="goBack" @click="$router.go(-1)">
				<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg" version="1.1">
					<polyline points="12,18 4,9 12,0" style="fill:none;stroke:rgb(255,255,255);stroke-width:2"/>
				</svg>
			</section>
			<router-link :to="userInfo?'/profile':'/login'" v-if="signinUp" class="head_login">
				<svg class="user_avatar" v-if="userInfo">
					<use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#user"></use>
				</svg>
				<span class="login_span" v-else>登录|注册</span>
			</router-link>
			<section class="title_head ellipsis" v-if="headTitle">
				<span class="title_text">{{headTitle}}</span>
			</section>
			<slot name="edit"></slot>
			<slot name="msite-title"></slot>
	        <slot name="changecity"></slot>
	        <slot name="changeLogin"></slot>
		</header>
   </div>
</template>

<script>
    import {mapState, mapActions} from 'vuex'
   export default {
    mounted(){
        // 获取用户信息
        this.getUserInfo();
    },
   props: ['signinUp', 'headTitle', 'goBack'],
   computed: {
        ...mapState([ 'userInfo' ])
   },
   methods: {
        ...mapActions([ 'getUserInfo' ]),
   }
 }
</script>

<style lang="scss" scoped>
    @import '../../style/mixin';

    #head_top{
        background-color: $blue;
        position: fixed;
        z-index: 100;
        left: 0;
        top: 0;
        @include wh(100%, 1.95rem);
    }
    .head_goback{
        left: 0.4rem;
        @include wh(0.6rem, 1rem);
        line-height: 2.2rem;
        margin-left: .4rem;
    }
    .head_login{
        right: 0.55rem;
        @include sc(0.65rem, #fff);
        @include ct;
        .login_span{
            color: #fff;
        }
        .user_avatar{
            fill: #fff;
            @include wh(.8rem, .8rem);
        }
    }
    .title_head{
        @include center;
        width: 50%;
        color: #fff;
        text-align: center;
        .title_text{
            @include sc(0.8rem, #fff);
            text-align: center;
            font-weight: bold;
        }
    }
</style>
